uboot: (firmwareOdroidC2/C4) don't invoke patch tool, use patches = [] instead

https://github.com/NixOS/nixpkgs/blob/master/pkgs/stdenv/generic/setup.sh#L948
this can do it nicely.

Signed-off-by: Anton Arapov <anton@deadbeef.mx>

pkgs/tools/audio/botamusique/unconditional-relative-state-paths.patch

@@ -0,0 +1,22 @@
+diff --git a/util.py b/util.py
+index bfec1ed..0546772 100644
+--- a/util.py
++++ b/util.py
+@@ -22,16 +22,7 @@ log = logging.getLogger("bot")
+ 
+ 
+ def solve_filepath(path):
+-    if not path:
+-        return ''
+-
+-    if path[0] == '/':
+-        return path
+-    elif os.path.exists(path):
+-        return path
+-    else:
+-        mydir = os.path.dirname(os.path.realpath(__file__))
+-        return mydir + '/' + path
++    return path
+ 
+ 
+ def get_recursive_file_list_sorted(path):